#!/usr/bin/python

import argparse

import logging

import ply.lex as lex

MAX_INTEGER = 2**31 - 1

#reserved keywords in cool

reserved = {

}

#tokens to be generated by lexer in cool

tokens = [

] + list(reserved.values())

#tokens for which values should be printed

tokens_to_print = {

}

t_ignore = ' \t\f\r\v'

t_LBRACE = r'\{'

t_RBRACE = r'\}'

t_PLUS = r'\+'

t_LPAREN = r'\('

t_RPAREN = r'\)'

t_MINUS = r'-'

t_DIVIDE = r'/'

t_TIMES = r'\*'

t_SEMI = r';'

t_COLON = r':'

t_COMMA = ','

t_LE = r'<='

t_LT = r'<'

t_GE = r'>='

t_GT = r'>'

t_EQUALS = r'='

t_LARROW = r'<-'

t_RARROW = r'=>'

t_TILDE = r'~'

t_DOT = '\.'

t_AT = '@'

def t_STRING(t):

return t

def t_INTEGER(t):

r'\d+'

t.value = int(t.value)

return t

def t_IDENTIFIER(t):

r'[a-z][a-zA-z0-9_]*|self'

t.type = reserved.get(t.value, 'IDENTIFIER')

return t

def t_TYPE(t):

r'SELF_TYPE|[A-Z][a-zA-Z0-9]*'

return t

def t_COMMENT(t):

r'(--.*)|(\(\*(.|\n)*?\*\))'

t.lexer.lineno += t.value.count('\n')

#return t

def t_newline(t):

r'\n+'

t.lexer.lineno += len(t.value)

def t_error(t):

print("Illegal character '%s'" %t.value[0])

t.lexer.skip(1)

def init_logger():

)

def print_tokens(lex):

print tok.value

def parse_file(filename, lex):

with open(filename, 'r') as inp:

lex.input(inp.read())

print_tokens(lex)

def get_tokens_from_cin(lex):

print_tokens(lex)

def get_args():

parser = argparse.ArgumentParser()

parser.add_argument('--file', help = 'file from which to read')

return parser.parse_args()

def main():

get_tokens_from_cin(lex)

if __name__ == '__main__':

main()